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Impermanent Loss Calculator: DeFi Liquidity Pool vs HODL Engine

Calculate impermanent loss, constant-product AMM rebalancing, LP vs HODL portfolio returns, and break-even trading fee APR for DeFi liquidity pools.

Reviewed by Fintools Find Quantitative DeFi & Automated Market Maker Advisory Board Updated August 2026 Zero Server Data Storage
Representative DeFi AMM Pool Scenarios1-Tap Fill

50/50 Liquidity Pool Setup

$10,000
$
Token Spot Prices in Fiat ($)
Ethereum (ETH)
USDC / USD
Trading Fee Yield & Holding Period Assumptions
15%
90 Days
Pure Impermanent Loss (%)
-5.72%($857.86 Drag vs HODL)
HODL Outperforms LP ✗Price Ratio: 2x
1. HODL Value$15,000.00(+50.0% ROI)
2. LP Value (No Fees)$14,142.14Pure pool value
3. LP Total (+ Fees)$14,512.00(+45.1% ROI)
Net LP Position vs 100% HODL:$-488.00
Accumulated Fee Revenue (90d):+$369.86
Break-Even Fee Yield Required:$857.86 (34.8% APR)
Impermanent Loss Curve (50/50 AMM)Current: 2x (-5.72%)
0%-25%-50%0.1x1x2x3x4x5x

Pool Token Inventory Rebalancing (Arbitrage Mechanics)

Ethereum (ETH)
Initial:2.5 units
Resulting:1.767767 units
Delta:-0.732233
USDC / USD
Initial:5000 units
Resulting:7071.067812 units
Delta:+2071.067812

Price Divergence Sensitivity Matrix

Mathematical impermanent loss and portfolio valuations across relative price shifts

50/50 Constant-Product Model (x · y = k)
Relative Ratio (r)Price MoveEthereum (ETH) PricePure IL %HODL ValueLP ValueIL Drag ($)
0.10x -90%$200-42.50%$5,500$3,162.28$-2,337.72
0.20x -80%$400-25.46%$6,000$4,472.14$-1,527.86
0.25x -75%$500-20.00%$6,250$5,000$-1,250
0.33x -66.67%$666.6-13.40%$6,666.5$5,773.21$-893.29
0.50x -50%$1,000-5.72%$7,500$7,071.07$-428.93
0.67x -33.33%$1,333.4-2.02%$8,333.5$8,165.17$-168.33
0.75x -25%$1,500-1.03%$8,750$8,660.25$-89.75
0.90x -10%$1,800-0.14%$9,500$9,486.83$-13.17
1x +0%$2,0000.00%$10,000$10,000$0
1.1x +10%$2,200-0.11%$10,500$10,488.09$-11.91
1.25x +25%$2,500-0.62%$11,250$11,180.34$-69.66
1.5x +50%$3,000-2.02%$12,500$12,247.45$-252.55
1.75x +75%$3,500-3.79%$13,750$13,228.76$-521.24
2x ◀ Current+100%$4,000-5.72%$15,000$14,142.14$-857.86
2.5x +150%$5,000-9.65%$17,500$15,811.39$-1,688.61
3x +200%$6,000-13.40%$20,000$17,320.51$-2,679.49
4x +300%$8,000-20.00%$25,000$20,000$-5,000
5x +400%$10,000-25.46%$30,000$22,360.68$-7,639.32
10x +900%$20,000-42.50%$55,000$31,622.78$-23,377.22

DeFi Analytical Notice: Models reflect standard 50/50 constant-product AMM mechanics (e.g. Uniswap v2). Concentrated liquidity ranges (v3) or weighted pools (Balancer) exhibit higher or different IL characteristics.

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Process Architecture

How Repayment & Lifecycle Works

Understanding the key phases of your loan or investment timeline

01

Deposit Assets into 50/50 AMM Pool

Equal fiat value of Token A and Token B is locked into the automated market maker smart contract, establishing the initial pool invariant k = x · y.

02

Market Prices Diverge & Arbitrageurs Rebalance

When external spot prices move, arbitrage traders swap with the pool to align its internal price ratio with broader market rates.

03

Pool Quantity Inventory Shifts

The AMM automatically sells portions of the appreciating token and buys more of the depreciating token to maintain 50/50 value equilibrium.

04

Evaluate Fee-Adjusted Net LP Performance vs HODL

Compare your final pool position value plus accumulated swap fees against the benchmark value of simply holding the initial tokens in a wallet.

Target Borrowers

Who Should Use the Impermanent Loss Calculator: DeFi Liquidity Pool vs HODL Engine?

DeFi Yield Farmers & Liquidity Providers

Evaluating whether decentralized exchange swap fee yields adequately compensate for expected directional volatility and impermanent loss drag.

Long-Term Crypto Investors & HODLers

Benchmarking passive wallet holding returns against active AMM liquidity provision across volatile market cycles.

Stablecoin & Pegged-Asset Poolers

Providing liquidity to low-divergence pairs (e.g. USDC/USDT or ETH/stETH) to capture steady trading fee APR with negligible impermanent loss.

DeFi Quantitative Researchers & DEX Analysts

Modeling constant-product invariant mechanics, pool depth dynamics, and required break-even fee yield thresholds.

Key Benefits

  • Determine whether pool trading fees will outpace impermanent loss before committing capital to decentralized exchanges
  • Identify your exact break-even fee APR hurdle rate for any expected token price volatility scenario
  • Understand the exact token rebalancing mechanics that cause liquidity pools to sell winners and buy losers
  • Compare holding spot crypto in cold storage against active DeFi yield farming strategies

Platform Features

  • Rigorous constant-product AMM (x · y = k) mathematical engine modeling 50/50 liquidity pools
  • Dual calculation modes: Explicit Spot Prices mode and Percentage Price Move mode
  • Three-way comparative valuation: 100% HODL Benchmark vs Pure LP Position vs Fee-Adjusted LP Total
  • Token inventory rebalancing calculator demonstrating exact automated arbitrage purchases and sales
  • Analytical break-even fee solver calculating the exact fee dollar revenue and annualized APR required to offset IL
  • Interactive SVG Impermanent Loss curve plotting real-time position markers along the mathematical divergence curve
  • Comprehensive Price Divergence Sensitivity Matrix spanning 0.1x to 10x relative price shifts
  • Multi-currency quoting across 9 major fiat denominations (USD, EUR, GBP, INR, CAD, AUD, AED, SGD, JPY)
Mathematical Engine

Constant-Product AMM & Impermanent Loss Formulations

Standard TVM Formula
Formula Expression
\text{IL Factor} = \frac{2\sqrt{r}}{1+r}, \quad \text{Impermanent Loss } \% = \left(\frac{2\sqrt{r}}{1+r} - 1\right) \times 100
r — Relative Price Ratio

The ratio of new relative prices to initial relative prices: r = (P_A1 / P_B1) / (P_A0 / P_B0).

V_{\text{HODL}} — HODL Portfolio Benchmark

Total value if original tokens were held: A_0 \cdot P_{A1} + B_0 \cdot P_{B1}.

V_{\text{LP}} — LP Position Valuation

Total value in the pool: A_1 \cdot P_{A1} + B_1 \cdot P_{B1} = V_{\text{HODL}} \cdot \text{IL Factor}.

\text{Net Advantage} — Fee-Adjusted Net Alpha

Total LP value including accumulated trading fee revenue minus the HODL benchmark: V_{\text{LP}} + \text{Fees} - V_{\text{HODL}}.

Case Studies

Practical Worked Scenarios

Example 1

Case Study 1: 2x Ethereum Bull Market Divergence (ETH / USDC)

Uniswap v2 50/50 Standard Pool
HODL Portfolio Value (2.5 ETH + $5k USDC) $15,000 USD (+50% ROI)
LP Position Value without Fees $14,142.14 USD (-5.72% Pure IL / -$857.86 drag)
Swap Fees Earned (15% Fee APR over 90 Days) +$369.86 USD
Net LP Advantage vs HODL -$488.00 USD (HODL Outperformed LP)
Key Takeaway: When ETH doubles in price against a stablecoin, the constant-product AMM continuously sells ETH into USDC. Pure impermanent loss is exactly -5.72% ($857.86). Because the 15% fee APR only produced $370 over 90 days, holding in a private wallet yielded $488 more than liquidity provision.
Example 2

Case Study 2: High-Volume Trading Pool Overcoming 2.5x Price Divergence

High Fee APR Liquidity Mining Pool
HODL Portfolio Value $17,500 USD (+75% ROI)
LP Position Value without Fees $15,811.39 USD (-9.65% Pure IL / -$1,688.61 drag)
Accumulated Swap Fees (60% APR over 120 Days) +$1,972.60 USD
Fee-Adjusted Net LP Advantage over HODL +$283.99 USD (LP Outperformed HODL!)
Key Takeaway: Even with a substantial -9.65% impermanent loss drag from a 2.5x price surge, high trading volume generating a 60% annualized fee yield earned $1,972.60 in fees, completely offsetting the $1,688.61 IL and generating an additional $284 in net alpha over pure holding.
Optimization Strategies

Practical Strategies to Save Money

Strategy 01

Target Correlated or Pegged Asset Pairs

Providing liquidity to pairs that move together (e.g. ETH/BTC or SOL/ETH) or pegged stablecoin pairs (USDC/USDT) keeps the relative price ratio near 1.0, virtually eliminating impermanent loss while capturing 100% of trading fee yields.

Strategy 02

Evaluate Pool Volume-to-Liquidity (V/L) Ratio

Impermanent loss is a fixed mathematical function of price divergence. High trading volume relative to pool size generates the fee revenue required to exceed the IL hurdle rate.

Strategy 03

Monitor Break-Even Annualized APR Thresholds

Before committing liquidity, calculate the minimum fee APR required to offset expected volatility over your intended holding timeframe using our built-in break-even solver.

Strategy 04

Remember: Impermanent Loss is Only Realized on Withdrawal

If price divergence is cyclical and the relative price ratio returns to its starting level (r = 1.0) before you remove liquidity, your impermanent loss drops back to 0.00%, locking in accumulated fee revenue as pure profit.

⚠️

Common Mistakes to Avoid

Critical financial oversights that reduce long-term returns

✕

Confusing Impermanent Loss with Total Portfolio Loss: IL measures underperformance relative to holding, not absolute fiat loss.

✕

Ignoring Trading Fee Yields: Evaluating IL in isolation without accounting for swap fee compounding produces an incomplete picture of LP profitability.

✕

Applying 50/50 AMM Formulas to Concentrated Liquidity: Standard constant-product formulas underestimate IL for narrow-range Uniswap v3 positions.

Frequently Asked Questions

Impermanent Loss Calculator: DeFi Liquidity Pool vs HODL Engine FAQs

Clear answers to common questions about calculations and methodology

Impermanent loss (IL) is the opportunity cost of providing liquidity to an Automated Market Maker (AMM) pool compared to simply holding the original tokens in a private wallet. It occurs whenever the relative price ratio between the two deposited tokens diverges from its initial entry point.
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